Bip39 Seed Phrase. The passphrase is not really selected from your predefined list of 2048 words – it may be any word or phrase you select. BIP39 is actually a style and design implementation that lays out how copyright wallets build the list of words (or "mnemonic codes") which make https://travialist.com/story9130128/bip39-word-list-https-linktr-ee-bip39-not-known-facts-about-bip39